Permutation-padlock



2 Sheets-Sheet 1.

(No Model.)

B. KAUFFELD.

PERMUTATION PADLOGK.

No. 394,119. Patented Dec. 4, 1888.

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N. PETERS. Fhuln uthognpher, wahingtnn. D. C-

2 Sheets-Sheet; 2.,

(No Model.)

B. KAUPFELD.

PERMUTATION PADLOOK.

No. 394,119. Patented Dec; 4, 1888.

WITNESSES':

Amok/VH8.

UNITED STATES PATENT OFFICE.

ELIAS KAUFFELD, OF PITTSBL'RG, PENNSYLVANIA.

PERM UTATION-PADLOCK.

SPECIFICATION formingpart of Letters Patent No. 394,119, dated December4, 1888.

Application filed March 30, 1888. Serial No. 268,986- (No model.)

To all whom it may concern:

Be it known that I, ELIAS KAUFFELD, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inPermutation-Padlocks; and I do hereby declare the followingto hea full,clear, and exact description of the invention, reference being had tothe accompanying drawings, which form part of this specification.

This invention has relation to combinationpadlocks, and has for its object to provide a cheap and strong padlock in which the combination canbe readily changed, and which will be incapable of being disarranged orgetting out of order.

This invention therefore consists in the construction, combination, andarrangement of parts more fully described hereinafter, and specificallypointed out in the claims.

Referring to the accompanying drawings, Figure 1 is a verticalsectional, Fig. 2 a side, view of the lock. Fig. is a top view of a pairof the lockin g plates or disks; and Fig. 1 a detail view of amodification, partly in section.

A represents the lock-casing, which may have the sides and bottom madein a single piece, as a casting, or in any other desired and suitablemanner, and it may be rectangular, or oblong, as shown, grooves a, anear the upper edge of the casing, being provided, into which a topplate, B, is fitted. A cover, C, having a depending flange, c, aroundits edge, completes the lock-case.

The working parts of the lock consist of a series of disks, D E,provided with holes d 6 through their centers, through which passvertical shafts H I. The disks 1) and E are of the same circumference;but the disks D are double the thickness of E. The disks D are formedwith recesses (Z (Z around the peripheries, while the disks E areprovided with studs or sprockets e e, as shown, the sprockets e ecoinciding with the recesses (Z d, and meshing therewith when the disksare in position upon their shafts. The disks E are formed with collarsor bosses surrounding the central hole, said collars being of the samethickness as the disks, so that when a pair of the disks D E are inposition on their respective shafts their upper surfaces will be inalignment, or

on a common level. The disks E are also provided each with a squareopening, F, in their edges, and the disks I) have symbols ordistinguishing-marks on their outer faces between each recess, letters,numbers, or other designs being depressed or engravedtherein.

A vertical slot in one of the inner sides of the casing is provided,into which fits a stem, G, which is formed with a rack or series ofprojecting studs, g, thereon, and a hook, g, at its upper end, a slot,P, in the opposite side of the case allowing access to the disks D andpermitting them to be separately revolved on their shafts.

The shafts II I are supported in a plate, J, fitting in the bottom ofthe case, and into which the shafts may be screwed or otherwise fastened, their upper ends fitting into washers n n beneath the plate B.

The several parts are placed in position, as follows: The bottom plate,J, carrying the vertical shafts II I, is first placed in position in thecase. The several disks D E are then placed in position on theirrespective shafts, the collars or bosses on the disks E being at theirlower side, so that each boss or collar will rest upon the disk belowit, the bottom one rest ing on the bottom plate, J, the washers n nbeing placed on the top of thelast plate. The disks are then revolvedtill the several openings I1 F are directly above one another. The stemG is then placed in position, a spring, 7r, fitting under its lower endand tending to force it upward. The plate 13 is slid into po sition andthe top C placed over it, thus retaining the several parts in theirproper position in the case. A screw-eye, L, passing through the top 0and into the plate B, prevents the removal of either of them. The hasp Mof the lock is hinged to the screw-eye L, and is formed with a hook, on,upon its free end, of such a size and shape as to interlock with thehook g upon the stem G.

The several parts being in their proper position, as described, thedisks D D, &c., are revolved by pressing against their sides through theopening I in the side of the case, and with them the disks E E, till theseveral openings F F coincide, when the spring it forces the stem Gupward, the studs g g thereon moving upward into the openings F F. Thehasp M is shut down and pushed to one side till the hooks m g are lockedtogether. The stem G is then pressed downward, and with it is drawn thehasp M, an opening in the top plate being provided for the reception ofthe end of the hasp. One or more of the disks D are then rotated, andthe disks E rotating at the same time, the openings F are turned to oneside, and the solid portion of the disks E, being over the teeth g g onthe stem G,-hold the stem in position till the several openings areagain placed in position directly above one another.

As it will be readily perceived that each pair of disks D E is capableof being rotated independently of any of the others, and that all theopenings F F must be in alignment before the lock can be opened, it willbe impossible to open the look without knowing the symbol to which eachdisk is set.

While I have herein described the plate B and the top 0 as beingseparate parts, I do not wish to confine myself to that exactconstruction, as they may be made, as shown in Fig. 4, in a singlepiece, and the screw-eye made of suflicient length to extend entirelythrough the same, and by impinging against one of the inner sides of thecase prevent the removal of the top and the integral plate.

The setting of the combination of the lock is a very simple matter, asall that is necessary is to decide upon a given sign or symbol to whicheach disk is to be settor instance, if there are six sets of disks inthe lock and it is desired to set the lock on the numbers 1, 2, 3, 4, 5,6, the first disk, E, is placed in position upon its shaft, with theopening F in position to allow the stem G to move up or down. Itscorresponding disk, D, is then placed in position with the number orsign 6 showing through the slot in the case. Theother disks are placedin like manner, the desired sign or number appearing through the slot oneach disk. hen all the disks are in their proper position, the numbers1, 2, 3, 4, 5, 6 will show through the slots and the several openings FF will be directly above one another, thus permitting the stem G to moveup or down; but if one of the disks D is turned so that the correct signor number does not show through the slot the stem G will be locked, andit cannot be released till the disk is placed in its correct position.

\Vhat I claim as new is 1. In a combination-padlock, the combination,with a series of disks or plates having recesses in their peripheriesand distinguishing letters or symbols between said recesses, of a seriesof toothed disks, each having an opening in its side, said series ofrecessed disks and toothed disks intermeshing in pairs, whereby whencertain signs or words are formed by the letters or symbols on theseries of disks the recesses in the toothed disks will be in alignmentone above the other, as set forth.

2. In a combination-padlock, the combination, with the case A, havingsliding plate B and top 0, of the screw-eye L, passing through the top 0and into the plate B, and hasp M, attached to said screw-eye, wherebythe top and sliding plate are held in position and cannot be removedwhile the hasp is locked, as set forth.

3. In a combination-padlock, the combination, with the case A, theseries of intermeshing disks D E, mounted on parallel shafts, and thevertical toothed stem G, having hook g on its upper end, of the hingedhasp M, having hook on its free end, whereby when said hasp and stem areinterlocked and said stem pressed downward and one or more of the disksrotated the hasp will be locked, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this22d day of March, 1888.

' ELIAS KAUFFELD.

Vitnesses:

H. C. EVERT, LoUIs MOESER.

